Rolling-mill



(N Model.) 4 Sheets-Sheet 1.

U. HASKIN.

, ROLLING MILL. No. 269,572. .samt-ed 1390.26, 18.82.

(No Model.) 4 Sheets-Sheet 2.

U. HASKIN.

ROLLING MILL.

No269,572. Patented Deo. 26, 1882.

EuFlE E (No Model.) 4 Sheets-Sheet 3.

U. IMSKIN.V

ROLLING MILL.

No.269,572. Patented Dec. 6,1882.

l I I L will lilly;

N. PETERS. Hwwmwmpner, wad-.msnm D. C.

4 Sheets-Sheet 4.

(No Model.)

U. HAS'KIN. ROLLING MILL.

10.269,572. vPabtmtefd 1260.26, 1882.

UNITED STATES PATENT ',OEEICE.

URI HASKIN, OF PITTSBURG, PENNSYLVANIA.

ROLLING-MILL.

SPECIFICATION forming part of Letters Patent No. 269,572, dated December 26, 1882,

(No model.)

.Toallwlwm'itmay concern: j.

Be it knownthat I, URI HASKIN, a citizen ot' the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a certain new and useful Improvement in Continuous Trains for Rolling Metals; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part thereof, in which- Figurelis a side elevation of my continuous train of four pairs of rolls, guides, and guideboxes in position for work. Fig. 2, Plate 2, is a ground plan of Fig. 1. Fig. 3, Plate 2, is a view of the twisted har as it passes through the train of rolls. Fig. 4, Plate 3, shows a front end view of my continuous train, and Fig. 5, on same sheet, shows the same elevation, with the-top section ofthe housing and top roll thrown back by means of the hinge-joint. Fig. 6, Plate 4. is a side view ot' housing-rolls and guides when in position, shown in Fig. 5. Fig. 7, Plate 4, shows the oblique arrangement of the top and bottom rolls when in Working position. Fig. S is a bottom view ofthe top brass. Fig. 9 is an end view of same. Fig. l() is a plan view of the bottom brass. Fig. 1l is an end view of same. l of the locking-clutch, held out of action bythe latch passingover the top of the housing-screw. Fig. 13 is an elevation of same when held out of position. Fig. 14 is a sectional view of housing-rolls, guide, and guide-boxes through the center of the groove. Fig. 15 is an end view of the annular guide-box. Fig. 16 is a plan view of my adjustable box-stretcher. Fig. 17 is an end view of spindle with a stretcher in place. Fig. 1S is an end view of a spindlebox; and Fig. 19 is a view of spindle, boxes, and stretcher in place.

Like letters where they occurare -intended to designate like parts of the machine.

My invention relates to continuous trains employed in rolling iron, steel, and, other metals.

In the ordinary practice ot' rolling metals, when bars or rods are produced the metal escaping from one groove is caught by the workl men with a pair of tongs and turned one-fourth ot' a revolution and inserted in the next groove.' This practice in rod trains running at high ve- Fig. 12 is a plan view.

locity is a very laborious and dangerous operation. To obviate this difficulty a continuous train of rolls has been devised composed of a series of horizontal and alternate vertical rolls; but as vertical rolls require bevel-gearin g to operate them the wear and tear of such a train is great, and it is costlyT to keep in repair. A continuous train has also been devised, composed of a series of horizontal rolls with various devices-such as guides, rolls, 85th-for forcibly7 twisting the bar or rod after it has left one pair of rolls and before it has entered the succeeding rolls; but, having had an extensive experience with a continuous train of the lattion in which it entered, which takes time and 'is a considerable expense, owing to the delay and waste'ot' the not metal in the furnace.

The second feature of this invention is'designed to obviate these difficulties by the use ot' sectional adjustable housings, to which are attached the guides and guide-boxes, all ot' which are so constructed and arranged that the top half of the trainLconsisting of housingrolls, guides, and guide-boxes, may be readily lifted oft' of the lnetal and the bar or rod withn drawn sidewise out of the machine; In order to secure these objects I have invented various devices, so as to enable me to practice my invention, which will be fully explained hereinafter.

In the practice of my invention .I place the bottom rollsatright angles with the line which the metal travels on, and all of the top rolls except the last one are placed on an oblique lille with the bottoni rolls, as shown in Fig. 7. By this arrangement the bar or rod is rolled with a suiicient twist so as to bring its horizontal line into a vertical plane at the instant it enters each succeeding groove, and as the last or finishing pair of rolls are both at right angles to the working-line, the rod is delivered in a straight, untwisted condition.

The housings are made sectional and re- TCO movable by means of a hinge-joint'on aline with the working-faces of the rolls, as shown in Figs. 4 and 5 on Plate 3, and are locked when in position for work by-means of the hingedstirrupandeccentricci. Thetopgudes, a and a?, are held in place by the cross-bar b and the rod d and spring e. The top guidebox, Z1', is held in place by the cross-bar b. The bottom guides,f, are held in place by the top guidesandtheguide-restg. rIhebottomguideboxes, h, are adjustable by means of the plate i. In the top of the bousingis a water-box,j, and on each side ot' the water-box there are annular openings, in which the spiral springs c are placed, so as to'keep the guides tight up against the upper rolls Without too much friction. The springs rest on the bottom of these annularopenings,and therod to which theguide is attached passes up through the center thereof, as shown in Fig. 17. lhe housingscrews are provided with locking-clutches to prevent the screws from slackening when the sections are unlocked and the pressure on the tightening-screws is released. On the top of these clutches movable latches are placed, in order to hold the clutch out of place when the screw is to be slackened. This clutch arrangement is shown in Figs. l2 and 13 on Plate 4 in postion to slack up the housing-screw.

In order to secure a sufficient twist to the bar at all times and at the varying temperature ofthe metal, the rolls are placed more obliquely than is required under ordinary conditions, and the guides on thcfdelivery side of the rolls are constructed with a normal twist, and, being held rigid, any extra twist is taken out ofthe metal while passing through them. It -will be seen that I do not use these guides as twisting-machines, nor do I claim them as such; but their ofice is to untwist such bars as may have an excessive twist, and to permit a bar having a normal twist to pass through them unaffected. Just beyond the guides is placed the guidebox having an annular opening of suiiicient diameter to permitthe twisting-bar to turn and pass forward. Beyond the guide-box are the entering guides of the' next pair ot' rolls, which also have an annular opening ofthe same diameter as that ot' the guide-box. This arrangement of the guides und guide-box is shown more fully in Figs. 6 and 17 on Plated. .Ihe opening in the guidebox bis annular. The opening in top and bottom guides a are also annular, while the opening in top and bottom guides a2 are of a diamond shape of such an arrangement as to allow the metal to pass through with a normal twist. From the guides a2 the annular opening is continuous to the next pair of rolls.

In the construction and operation ot' this train I prefer to use solid journal-boxes, such as shown in Figs. 8, 9, 10, and 11 on Plate 4. These boxes or brasses are held in. place by means of the setscrews lr. The journals are oiled through the oil-opening Z. The water` boxj in the top of the housing is used only for cooling vthe body of the rolls, as I prefer to use no water on the journals or necks of the rolls. When it becomes necessary to change the bottom rolls it will be necessary to detach the,spindle-connection by which they are driven, and in order to facilitate that work I have devised a stretcher which can be more readily put on and taken off than by the old method of tying the stretchers with cord or wire. My improved stretcher is made of two pieces of wood, which are made to fit inthe concave grooves ofthe spindles. These pieces ot wood are fastened to plates of spring-steel, so that when the stretcher is in place it is held by the spring, as shown in Figs. 17 and 19, Plate 4.

In the drawings I have shown but four pairs of rolls; butin practice, when a two-inch-squarc billet is to be rolled into a three-eighths of an inch square rod for railroad-spikes, I use a train ot' twelve pairs of rolls; and when a two,

inch-square billet is to be rolled into a No. 5

rod I use eighteen pairs ol' rolls in one continuous train.

The operation of my continuous train is as follows: The hot iron is placed in the lirst paig of rolls. The bar is therein reduced to a diamond shape, and by the action of the oblique rolls is caused automatically to pass out ot the rolls twisted in such degree as to bring its long axis from a horizontal to a vertical position when it enters the second pair of rolls. The action of these rolls then reduces the metal to a diamond shape, with its long axis horizon` tal, and delivers it in a twisted condition, the same as the tirst; and so each pair of rolls except the last pair reduces the bar to a diamond shape, with its long` axis horizontal, and delivers it in a twisted condition, so that it may enter the succeeding pair ,ot',rolls with the long axis vertical. The last pair of rolls being placed parallel, therod is delivered from the train in a straight, untwisted condition.`

As I have found that when iron is rolled in oblique rolls the twisting is greatest when the iron is the hottest and less at a lower temperature, in order to secure a proper twist under all temperatures, I set the Obliquity ot' the rolls to twist from olie-third to one-halfgrea'ter than required, and as the bar escapes out of the rolls it enters the guides, which take out whatever excessive twist there may be in it, and from the untwisting-guides it passes through the annular opening of the guide-box and guide into the succeeding rolls. It will be noticed that the bar is in all of the rolls at the same time. Fig. 3 on Plate 2 shows the shape ot' a bar takenfrom three pairs of obliquo and one pair of parallel rolls.

Should an accidentpoccur while'the metal is in the rolls, the train is stopped, the eccentrics are loosened, the stirrups lowered, and the top section of the housing is raised and rested on a stand, m, Fig. 5, Plate 3. One minute will be sufcient time to open the entire train in this manner. When thus opened the bar or rod may be withdrawn sidewise, the sections again closed and locked, when the train will IOO be ready for use. By this arrangement l am enabled to take a bar or cobble out of' the train in one-tenth ofthe time that is required where solid housings are used.

ln order to relieve the weight of the top section of' housing and rolls and make it more A easily handled, I use two volute or spiral springs, n n, Figs. 2, 4, and 5, Plates 2 and 3. B v means of these springs the weight is nearly balanced, so that a man can easily raise a top section almost instantly.

By the use of my continuous train having twelve pairs of rolls, hot bars of iron or steel two inches square may readily be rolled into three-eighths inch rods at the rate of' tivev hundred (500) feet per minute, or one hundred tons per day of twenty-four hours; and by the use of eighteen pairs of rolls, the last pair of which having a delivery of fifteen hundred feet per cent. The last pairs ot' rolls only draw about tive per cent., and their increased speed m'ust not be over five per cent. NVhen iron rods are drawn smaller than three-eighths of an inch, or when steel is rolled, 1 advise that the area should not be reduced in any pair ot' rolls more than twenty percent., and in that l case the increased speed of succeeding rolls should be twenty per centi.

Havingdescribed myinvention, whatlclaim, and desire to secure by Letters Patent, is

l. In a-machinc for rollngmetals, housings formed in two parts joined at ornear a plane passing between the working-faces of' the rolls, and having the upper roll so arranged in relation to its housings that thet'ormer may participate in any motion which may be imparted to the latter, substantially as and for the purpose specified.

2. Roll-housings formed in two parts, joined at or near a plane which will pass between the workingfaces ot' the rolls when they are inserted within said housings, substantially as and for the purpose specified.

3. Housings for a pair of' rolls formed in two parts, joined at or near aplane passing hetween the working-faces of' said rolls, and provided with a spring or springs so arrangedas to assist in swinging back the upper from the lower section of the housings, substantially as and for the purpose herein specified.

4. ln a machine for rolling metals, housings formed in' two parts, joined at or near a plane passing between the working-faces of the rolls, and provided with sectional guides and guideboxes, the upper sections of which are so arranged in relation to the upper section of the housings that they may participate in any motion which may be imparted to the latter, substantially as and for the purpose herein speci fied.

5. In a machine for rolling metals,housngs formed in two sections, pivoted together at or near a plane passing between the workingfaces of the rolls, and provided with alocking device to secure the sectionsv together, substa-ntially as and for the purpose herein set forth.

6. A continuous train of pairs of horizontal rolls having the rolls of each pair except the last placed obliquely to each other, substantially as and for the purpose specified.

7. A continuous train of pairs ot' horizontal rolls having the rolls of each pair except the last placed obliquely to each other, and provided with a top and bottom guide between each pair, constructed as specified, whereby the metal may he twisted by the oblique action of the rolls and an excessive twist prevented by the-guide, substantially as herein setforth.

S. A continuous train of pairs of horizonta rolls having the rolls of each pair except the last placed obliquely to each other, and provided with an annular guide-box between each pair, whereby the metal may be twisted by the rolls while being guided in a straight line for each succeeding pass.

9, A continuous train of' pairs of horizontal rolls having the upper rolls mounted severally in removable sectional housings provided with tightening screws having locking clutches, i

whereby the screws may be retained in proper position after the housing-sections are unlocked and the pressure on the tighteningscrews relieved, substantially as specified.

10. In a machine or rolling metals, housings formed in two sections, joined at or near a plane passing between the working-faces of the rolls,having sectional guides and guide-boxes, arranged as specified, land provided with a spring or springs to aid in removing the upper sections of the housings, substantially as and for the purpose specified.

ll. A continuous train of pairs of' horizontal rolls mounted in sectional housings, coustructed and arranged to operate as specified, whereby the top sectionl ot the housings of each or all the pairs of rolls may be readily swung away o r removed to permit repairs, replacement of guides, guide-boxes, and rolls, or theremoval of' cobbles, substantially as and for the purpose specified.

URI HASKIN.

Witnesses;

J. J. MCGILL, WALTER Reuss. 

